- I had a new hard drive professionally installed. I went to install Windows XP on my computer. It ran through the first step but after copying the files it would not reboot. It leads me over and over to a screen that says: A disk read error occurred, Press cntrl alt delete to restart and then it looks like it will reboot but hten goees back to the same screen. How can it be a disk error if it went through the setup and I never touched the disk afterwards? Now I can't do anything with it. Any help would be greatly appreciated.